.img{
	width:500px;
	height:500px;
	position:absolute;
	z-index: 1;
}
#sz{
	position:absolute;
	z-index:3;
}
#szPanel{
	position:absolute;
	z-index:4;
}
#hand{
	position:absolute;
	z-index:5;
}
#tip{
	left:50px;
	top:180px;
	visibility:hidden;
	position: absolute;
	z-index:9;
}
